Turn emails or phones into a rich person profile

Many apps struggle to balance deep user insights with a frictionless onboarding experience. profileAPI ends the compromise: feed it any business or personal email or phone number, and instantly unlock enriched profiles and actionable insights to personalize onboarding and deliver value from the first interaction.

Benefits

Personalization from Any Contact

Whether you start with a personal email, business address, mobile number—or even an outdated contact—profileAPI transforms it into a rich user profile. Deliver a “magic moment” during onboarding by instantly auto‑populating avatars, job titles, and company logos, slashing friction and supercharging engagement.

Waterfall for High Coverage

profileAPI integrates with multiple contact providers in a waterfall pipeline—querying each source in sequence until we locate the person you need and cross‑verifying results for accuracy. This smart, sequential approach ensures unparalleled coverage and the most cost‑effective enrichment—all under a single subscription.

Example API Requests and Responses

Identifying from personal email

POST https://api.profileapi.com/2024-03-01/email-contacts/reverse-lookup Request { "email": "[email protected]" // personal email } Response { "id": "9e6a55b258ef11edb8780242ac120002", "name": "John Doe", "linkedInUrl": "https://linkedin.com/in/johndoe-12321" }

Identifying from mobile

POST https://api.profileapi.com/2024-03-01/phone-contacts/reverse-lookup Request { "phone": "+1234567890" // mobile } Response { "id": "9e6a55b258ef11edb8780242ac120002", "name": "John Doe", "linkedInUrl": "https://linkedin.com/in/johndoe-12321" }

Documentation Reference

For up to date detailed documentation, we recommend you check out our resource page

Go to resource

Start Identifying Users in Your App

Start Building Talk to an expert